John Wesley Powell (March 24, 1834 – September 23, 1902) was a U.S. soldier, geologist, explorer of the American West, professor at Illinois State University, and director of major scientific and cultural institutions. He is famous for the 1869 Powell Geographic Expedition, a three-month river trip down the Green and Colorado rivers that included the first known passage through the Grand Canyon.
क्या आप के पास ऐसा प्रपत्र है जिसे आप एक अनुप्रयोग के रूप मैं बदलना चाहतें है?
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